Koibito wa Hatsujouki (Yaoi) manga

Koibito wa Hatsujouki (Yaoi)
Kamon Saeko 2008 released.
Romance / School Life / Smut / Supernatural / Yaoi
恋人は発情期, My Lover in Heat
138 voted


Kiyoharu, friendless and without a family, owns a single dog, Jirou. The dog, which miraculously turned into a human six months ago, went into heat and ravaged his master~

"Jiro, I love you very much - but it troubles me to have you make love to me so deeply." As Kiyoharu becomes deeply troubled, Jirou goes into heat yet again!

Other manga by the same author(s)


Koibito wa Hatsujouki Ch.7(end)

Feb 11, 2011

Koibito wa Hatsujouki Ch.6

Feb 11, 2011

Koibito wa Hatsujouki Ch.5

Feb 11, 2011

Koibito wa Hatsujouki Ch.4

Feb 11, 2011

Koibito wa Hatsujouki Ch.3

Feb 11, 2011

Koibito wa Hatsujouki Ch.2

Feb 11, 2011

Koibito wa Hatsujouki Ch.1

Feb 11, 2011
Total: Sort by: Popularity / Date
2014-09-25 03:05
The stories were sweet, but I felt as if they escalated too quickly. I wished they would have been extended a little more.
2014-09-24 13:16
I kind of want more of that last one. It had a lot of potential to actually become a good series. Sad that it's only a oneshot :( But I still loved it anyway! :D
2014-09-22 23:45
jesus so many kinks its wonderful
2014-09-20 06:40
I loved these collection of stories my favorites were chapters 1 & 7 they were a mixture of smut and romance overall it was awesome

177 Topics

  1. Cheeky Vampire September 25, 2014 7:11 pm

    this manga has everything! :D so amazing *.*

  2. articwolf
    August 21, 2014 7:15 am

    what a lovely story. like the animal ones and the last one.

  3. Sapphirewoman August 13, 2014 12:03 am

    I love this story alot more please thanks

  4. marry July 28, 2014 3:41 am

    i really love the last and the third stories
    i liked how honest the uke was about his desires in the third story and i liked how the uke give himself over completely to the seme in the last story

  5. Cutey Honey July 26, 2014 7:04 am

    If I were to rename each chapter in this story, they would be:
    Chapter 1: Cry-baby sensei and scary loser
    Chapter 2: Loser nerd and his shota
    Chapter 3: Two losers fap on a train
    Chapter 4: The thirst is real
    Chapter 5: Desperate loser screws his dog
    Chapter 6: Wasted loser screws his cat
    Chapter 7: Desperate loser cheats on his fiancee and suddenly goes full homo while in China

    • Zed
      August 2, 2014 11:57 am

      OhmyGod. This made me laugh so I hard I was tearing up x'D I did like this manga but your titles work so well!! :p

    • The 14th August 6, 2014 1:36 pm

      OMFG ROFL of the the best comments i have ever read! Im dying right now of laughter!!! XD

    • Zero September 11, 2014 2:47 pm

      SHIT !!!! My stomach hurts !!!! xD xD

    • MAXX September 18, 2014 7:07 am

      LOL ^-^

    • Vette
      September 25, 2014 3:07 am


  6. Creepy stocker July 19, 2014 10:08 pm

    I love this manga

  7. mal July 19, 2014 1:17 am

    yoooooooooooooo what the friiiiiiiiiiiiick

  8. KKolorful July 11, 2014 6:29 am

    oh man I found it again!
    I freakin love the last story idk why but I have literally been daydreaming about it for the last like 5+ months haaaa

  9. Okane8aNai June 30, 2014 6:10 am

    wow >#< chapter 4-5 sure was something special. That cat was so hot tho *-* omgosh..

    • The 14th August 6, 2014 1:46 pm

      Ikr i love stories where cat-human or dog-humans are seme! KYAAAA

  10. onna31 June 25, 2014 10:35 pm

    Hot!!! Read with caution! Though i wish the last pairing have more scene, like the coworker worry he disappeared n serching for him....he been spirit away to some old time kingdom n such will b nice

  11. mangalover June 23, 2014 11:00 pm


  12. squishy 9264 June 19, 2014 4:46 am

    *Blinks* ... *speechless* .... Well, I have read a lot of yaoi, but THIS is something "different".

  13. fangirlforever June 18, 2014 11:28 pm

    i feel like i lost enough blood to fill entire oceans! massive nosebleed

  14. InLoveWithYaoi May 31, 2014 11:56 pm

    My nose have alot of blood coming out, it look like it was a murder scene in my room it everywhere!!

    • Binguiness June 13, 2014 10:12 am


  15. Mickey May 29, 2014 4:57 pm

    e...everything i ever need are in this manga *massive nosebleed*

  16. Kera May 28, 2014 6:36 pm

    good yaoi.

  17. illyria May 27, 2014 1:36 pm

    Woooooo, what did i just read @.@ bravo, Sensei you've yet again brought happiness to many people unforunately bloood loss too xD

  18. VampireKnight May 11, 2014 8:57 pm

    Nabu baby love it love it

  19. A unknown person May 7, 2014 4:30 pm

    When ch. 4 I was shock seeing that scence

  20. delicious creme puff May 7, 2014 10:18 am

    re-reading this again~ahh so yummy~